Finding the Fourth Proportional to 122,644.09, 183,806.99 and 55,126.24
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Solution
The fourth proportional to 122,644.09, 183,806.99 and 55,126.24 is: 82,617.82
Step by Step Solution
- Step 1: Write the proportion equation
122,644.09 : 183,806.99 = 55,126.24 : x - Step 2: Convert to fraction form
122,644.09/183,806.99 = 55,126.24/x - Step 3: Cross multiply
122,644.09x = 183,806.99 × 55,126.24 - Step 4: Simplify right side
122,644.09x = 10,132,587,715.99 - Step 5: Solve for x
x = 10,132,587,715.99/122,644.09 - Step 6: Final answer
x = 82,617.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.